1
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM random
4
5#if !defined(_TRACE_RANDOM_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_RANDOM_H
7
8#include <linux/writeback.h>
9#include <linux/tracepoint.h>
10
11TRACE_EVENT(add_device_randomness,
12 TP_PROTO(int bytes, unsigned long IP),
13
14 TP_ARGS(bytes, IP),
15
16 TP_STRUCT__entry(
17 __field( int, bytes )
18 __field(unsigned long, IP )
19 ),
20
21 TP_fast_assign(
22 __entry->bytes = bytes;
23 __entry->IP = IP;
24 ),
25
26 TP_printk("bytes %d caller %pS",
27 __entry->bytes, (void *)__entry->IP)
28);
29
30DECLARE_EVENT_CLASS(random__mix_pool_bytes,
31 TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
32
33 TP_ARGS(pool_name, bytes, IP),
34
35 TP_STRUCT__entry(
36 __field( const char *, pool_name )
37 __field( int, bytes )
38 __field(unsigned long, IP )
39 ),
40
41 TP_fast_assign(
42 __entry->pool_name = pool_name;
43 __entry->bytes = bytes;
44 __entry->IP = IP;
45 ),
46
47 TP_printk("%s pool: bytes %d caller %pS",
48 __entry->pool_name, __entry->bytes, (void *)__entry->IP)
49);
50
51DEFINE_EVENT(random__mix_pool_bytes, mix_pool_bytes,
52 TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
53
54 TP_ARGS(pool_name, bytes, IP)
55);
56
57DEFINE_EVENT(random__mix_pool_bytes, mix_pool_bytes_nolock,
58 TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
59
60 TP_ARGS(pool_name, bytes, IP)
61);
62
63TRACE_EVENT(credit_entropy_bits,
64 TP_PROTO(const char *pool_name, int bits, int entropy_count,
65 int entropy_total, unsigned long IP),
66
67 TP_ARGS(pool_name, bits, entropy_count, entropy_total, IP),
68
69 TP_STRUCT__entry(
70 __field( const char *, pool_name )
71 __field( int, bits )
72 __field( int, entropy_count )
73 __field( int, entropy_total )
74 __field(unsigned long, IP )
75 ),
76
77 TP_fast_assign(
78 __entry->pool_name = pool_name;
79 __entry->bits = bits;
80 __entry->entropy_count = entropy_count;
81 __entry->entropy_total = entropy_total;
82 __entry->IP = IP;
83 ),
84
85 TP_printk("%s pool: bits %d entropy_count %d entropy_total %d "
86 "caller %pS", __entry->pool_name, __entry->bits,
87 __entry->entropy_count, __entry->entropy_total,
88 (void *)__entry->IP)
89);
90
91TRACE_EVENT(push_to_pool,
92 TP_PROTO(const char *pool_name, int pool_bits, int input_bits),
93
94 TP_ARGS(pool_name, pool_bits, input_bits),
95
96 TP_STRUCT__entry(
97 __field( const char *, pool_name )
98 __field( int, pool_bits )
99 __field( int, input_bits )
100 ),
101
102 TP_fast_assign(
103 __entry->pool_name = pool_name;
104 __entry->pool_bits = pool_bits;
105 __entry->input_bits = input_bits;
106 ),
107
108 TP_printk("%s: pool_bits %d input_pool_bits %d",
109 __entry->pool_name, __entry->pool_bits,
110 __entry->input_bits)
111);
112
113TRACE_EVENT(debit_entropy,
114 TP_PROTO(const char *pool_name, int debit_bits),
115
116 TP_ARGS(pool_name, debit_bits),
117
118 TP_STRUCT__entry(
119 __field( const char *, pool_name )
120 __field( int, debit_bits )
121 ),
122
123 TP_fast_assign(
124 __entry->pool_name = pool_name;
125 __entry->debit_bits = debit_bits;
126 ),
127
128 TP_printk("%s: debit_bits %d", __entry->pool_name,
129 __entry->debit_bits)
130);
131
132TRACE_EVENT(add_input_randomness,
133 TP_PROTO(int input_bits),
134
135 TP_ARGS(input_bits),
136
137 TP_STRUCT__entry(
138 __field( int, input_bits )
139 ),
140
141 TP_fast_assign(
142 __entry->input_bits = input_bits;
143 ),
144
145 TP_printk("input_pool_bits %d", __entry->input_bits)
146);
147
148TRACE_EVENT(add_disk_randomness,
149 TP_PROTO(dev_t dev, int input_bits),
150
151 TP_ARGS(dev, input_bits),
152
153 TP_STRUCT__entry(
154 __field( dev_t, dev )
155 __field( int, input_bits )
156 ),
157
158 TP_fast_assign(
159 __entry->dev = dev;
160 __entry->input_bits = input_bits;
161 ),
162
163 TP_printk("dev %d,%d input_pool_bits %d", MAJOR(__entry->dev),
164 MINOR(__entry->dev), __entry->input_bits)
165);
166
167TRACE_EVENT(xfer_secondary_pool,
168 TP_PROTO(const char *pool_name, int xfer_bits, int request_bits,
169 int pool_entropy, int input_entropy),
170
171 TP_ARGS(pool_name, xfer_bits, request_bits, pool_entropy,
172 input_entropy),
173
174 TP_STRUCT__entry(
175 __field( const char *, pool_name )
176 __field( int, xfer_bits )
177 __field( int, request_bits )
178 __field( int, pool_entropy )
179 __field( int, input_entropy )
180 ),
181
182 TP_fast_assign(
183 __entry->pool_name = pool_name;
184 __entry->xfer_bits = xfer_bits;
185 __entry->request_bits = request_bits;
186 __entry->pool_entropy = pool_entropy;
187 __entry->input_entropy = input_entropy;
188 ),
189
190 TP_printk("pool %s xfer_bits %d request_bits %d pool_entropy %d "
191 "input_entropy %d", __entry->pool_name, __entry->xfer_bits,
192 __entry->request_bits, __entry->pool_entropy,
193 __entry->input_entropy)
194);
195
196DECLARE_EVENT_CLASS(random__get_random_bytes,
197 TP_PROTO(int nbytes, unsigned long IP),
198
199 TP_ARGS(nbytes, IP),
200
201 TP_STRUCT__entry(
202 __field( int, nbytes )
203 __field(unsigned long, IP )
204 ),
205
206 TP_fast_assign(
207 __entry->nbytes = nbytes;
208 __entry->IP = IP;
209 ),
210
211 TP_printk("nbytes %d caller %pS", __entry->nbytes, (void *)__entry->IP)
212);
213
214DEFINE_EVENT(random__get_random_bytes, get_random_bytes,
215 TP_PROTO(int nbytes, unsigned long IP),
216
217 TP_ARGS(nbytes, IP)
218);
219
220DEFINE_EVENT(random__get_random_bytes, get_random_bytes_arch,
221 TP_PROTO(int nbytes, unsigned long IP),
222
223 TP_ARGS(nbytes, IP)
224);
225
226DECLARE_EVENT_CLASS(random__extract_entropy,
227 TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
228 unsigned long IP),
229
230 TP_ARGS(pool_name, nbytes, entropy_count, IP),
231
232 TP_STRUCT__entry(
233 __field( const char *, pool_name )
234 __field( int, nbytes )
235 __field( int, entropy_count )
236 __field(unsigned long, IP )
237 ),
238
239 TP_fast_assign(
240 __entry->pool_name = pool_name;
241 __entry->nbytes = nbytes;
242 __entry->entropy_count = entropy_count;
243 __entry->IP = IP;
244 ),
245
246 TP_printk("%s pool: nbytes %d entropy_count %d caller %pS",
247 __entry->pool_name, __entry->nbytes, __entry->entropy_count,
248 (void *)__entry->IP)
249);
250
251
252DEFINE_EVENT(random__extract_entropy, extract_entropy,
253 TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
254 unsigned long IP),
255
256 TP_ARGS(pool_name, nbytes, entropy_count, IP)
257);
258
259DEFINE_EVENT(random__extract_entropy, extract_entropy_user,
260 TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
261 unsigned long IP),
262
263 TP_ARGS(pool_name, nbytes, entropy_count, IP)
264);
265
266TRACE_EVENT(random_read,
267 TP_PROTO(int got_bits, int need_bits, int pool_left, int input_left),
268
269 TP_ARGS(got_bits, need_bits, pool_left, input_left),
270
271 TP_STRUCT__entry(
272 __field( int, got_bits )
273 __field( int, need_bits )
274 __field( int, pool_left )
275 __field( int, input_left )
276 ),
277
278 TP_fast_assign(
279 __entry->got_bits = got_bits;
280 __entry->need_bits = need_bits;
281 __entry->pool_left = pool_left;
282 __entry->input_left = input_left;
283 ),
284
285 TP_printk("got_bits %d still_needed_bits %d "
286 "blocking_pool_entropy_left %d input_entropy_left %d",
287 __entry->got_bits, __entry->got_bits, __entry->pool_left,
288 __entry->input_left)
289);
290
291TRACE_EVENT(urandom_read,
292 TP_PROTO(int got_bits, int pool_left, int input_left),
293
294 TP_ARGS(got_bits, pool_left, input_left),
295
296 TP_STRUCT__entry(
297 __field( int, got_bits )
298 __field( int, pool_left )
299 __field( int, input_left )
300 ),
301
302 TP_fast_assign(
303 __entry->got_bits = got_bits;
304 __entry->pool_left = pool_left;
305 __entry->input_left = input_left;
306 ),
307
308 TP_printk("got_bits %d nonblocking_pool_entropy_left %d "
309 "input_entropy_left %d", __entry->got_bits,
310 __entry->pool_left, __entry->input_left)
311);
312
313#endif
314
315
316#include <trace/define_trace.h>
317
